Heald-wire for carpet-looms.



No. 774,909. PATENTED NOV. 15, 1904. J. GOGKBR.

HBALD WIRE FOR CARPET LOOMS.

APPLICATION FILED MAR'. 14.1904. no MODEL.

FIG-L l-2- FIG.5. F'|G| 5 K W 1 Q A A A A k k A FnGAs.

A "A D K.) 3 4 E )5 B B B J j 4 J WITNESSES 'NVENTOR aw i 0% M PatentedNovember 15, 1904.

UNIT D STATES PATENT OFFICE.

JOHN OOCKER, OF HALIFAX, ENGLAND.

H EALD-WIRE FOR CARPET-LOOMS.

SPECIFICATION forming part of Letters Patent No. 774,909, dated November15, 1904. Application filed March 14, 1904:. Serial No 198,108. (Nomodel.)

To all whom, it may concern:

Be it known that I, JOHN COOKER, a subject of the King of Great Britain,and a resiolent of Halifax, in the county of York, England, (whosepostal address is 17 Pit Hill, Trooper Lane, Halifax, aforesaid,) haveinvented new and useful Improvements in Heald-VVires for Carpet-Looms,of which the following is a specification.

This invention relates to heald-wires employed in carpet-looms, and isspecially designed for use in Brussels looms and back healds intapestry-looms.

Hitherto the heald-wires upon the backheald shafts of carpet-looms havebeen knit together and constructed of brass wire, with mails formed bythe strands of wire. This kind of heald-wire has numerous drawbacks. Itis apt to lengthen from constant use, buckle and break at the mail oreyelet, and is soon worn out by the constant rubbing or friction of thewarp upon same.

It will be readily understood that should a heald-wire buckle at themail in all probability serious damage or injury to the pattern of thecarpet will follow, consequent upon the said wire or mail interferingwith or acting upon the adjoining warp-threads as the former is beingraised or lowered by the heald-shafts during the operation of the loom.In the case of the wires attached to lingoes the twisted-wire strands ofwhich such wires are formed greatly damage the Warp threads should theyrub against them during the operation of the shedding motion. Thefriction set up by said rubbing causes a considerable quantity of flufl'or waste fibers from said warp-threads to accumulate beneath the lingoeswhich should go to make the carpet. Further, all the wires and mailsbeing knit together, considerable time and labor is taken up in changingor reducing the number of wires and mails, according to the width orquality of carpet to be woven.

The object of my invention is to construct heald-wires for theback-heald shafts of carpet-looms of greater strength and durabilitythan hitherto, such as will not deteriorate either from varyingtemperatures or long standing when not in use and which by their smoothexterior will reduce the friction upon the warp-threads to a minimum,and so prevent the accumulation of fluff by removing the cause, theresult being a better quality of carpet.

My improved heald-wire is also mounted free or loose upon theheald-shafts, so that should one or more wires be disarranged or movedout of their correct position by the weaver in making some alteration,adjustment, or examination of the adjacent mechanism of the loom thewire or wires adjusts itself or themselves in a direct line with itsdesired position in the reed or slay at the next beat up of the loom. Inthis manner the strain upon the warp is reduced to a minimum, a moreeven shed is obtained, and the tension is uniform throughout. Also withthe said wires being loose upon their shafts any wires not required canbe easily'detached, secured together, and moved to one or each end outof the way. Additional wires can be employed or placed in position withequal facility.

Figure 1 shows my improved heald-wire in sections or in the first stageof manufacture. Fig. 2 shows my improved heald-wire in the second stageof manufacture. Fig. 3 shows my improved heald-wire in the finishedstate. Fig. 4 is an end view of a section of my improved wire shown atFig. 3. Fig. 5 shows my improved heald-wire for use with lingoes.

My improved heald-wire is constructed of hardened and tempered steel andof a desired length and. strength, with hooks or eyes formed at the endsto suit the different heald-shafts or lingoes, as required. In order toform the mail or eyelet in such wire, I preferably form or constructsaid wire of two sections or pieces A and B and bend the same at one endof each section in a suitable manner, the continuation or short piece Cfrom each bend D being in alinement with the straight part of eachsection and is chamfered, so as to splice or bed properly and not undulythicken the wire at this part. When the two-sections A and B are broughttogether, the bend in one section should be directly opposite the bendin the other section, so forming the desired eyelet or mail E. The twosections are then spliced together at this part by being wrapped withsuitable steel wire, band, or collar F upon each side of the mail. TheWh ole is then brazed to form a smooth, durable, and permanent eyeletand joint. The wires when in use are mounted upon the heald-shafts bymeans of the hooks G, which move or slide upon the said shafts andadjust themselves as desired, according to the tension put upon them bythe warp, while any Wire or wires not required are simply detached andplaced at one end of said shafts out of the way until again required.The wires and mails when finished being one piece of hardened andtempered steel uniform in thickness with a smooth surface throughoutthey are inextensible, and should they be temporarily bent on someaccount or other their elasticity causes them to resume their normalcondition immediately upon being released.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

A heald formed of sections of Wire each having a curved portion and atapering end portion, the end portion of each said section being securedby line-wire bands to the main JOHN COCKER.

\Vitn esses:

ABM. REED, WV. E. GREENWOOD.

